Rated 5 out of 5 stars

Update: 5/13/2016 10am I just uninstalled TZP and re-installed the latest 3.9beta1 and it's working great again. Yes! (Firefox 46.0.1, Windows 8.1)

Apparently just installing over a previous version does not work. Uninstall first then install.

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I love Thumbnail Zoom but only if it works.

I just tried the latest update 3.9beta1 (the Facebook fix) and now on Facebook the little icon that usually appears when you hover over a photo doesn't even appear. It doesn't work at all.

I was running Firefox 47.0beta4. I installed 46.0.1 but still no Thumbnail Zoom.
(Windows 8.1)

Eagerly awaiting the fix!

This review is for a previous version of the add-on (3.8). 

I'm glad to see it's working for you after reinstalling.

Rated 5 out of 5 stars

I have Firefox 46.0b10 and Thumbnail Zoom 3.8

It works fine elsewhere but on Facebook it pops up the little icon near the top right of the picture then disappears, never showing the enlarged picture.

Please fix I can't live without it! :0

This review is for a previous version of the add-on (3.8).